Top NFL draft prospects by position

Ranking the top five NFL prospects, by position, for the 2013 draft

There were some moves on the Big Board this week, but fewer here. Each player's position is based on my projection of his NFL position -- so if a guy played defensive end in college, he could be an outside linebacker here, a tackle could move to guard. There are few cases I can see below where the top 5 won't cover all first-round picks, but offensive tackle could be one.